Well if that's the case then what is in pic 4? Everyone's saying that pics 1-3 are the cats so that means in pic 4 that must be the reso? In the background of pic 4 you can see my Magnaflow muffler. Therefore if that IS in fact my reso, it's located in between my cats and my muffler. Haha this is confusing, I'm grabbin a beer.